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How to define the earth (means ground)?

- July 27, 2021 at 4:21 am
  
  tsjitom
  Subscriber
  
  Hello,
  In the Capacitive Coupling Wireless Power Transfer (WPT) system I am studying, the electrode-to-ground (earth) capacitance needs to be considered.
  But I'm not sure how to define the earth.
  I tried a method of placing a metal plate under the object to be measured and connecting it to the ground.
  Please let me know if there is another better way.
  The software I am using is ANSYS Electronics Desktop 2021 R1 (HFSS), and the simulation frequency is from 1MHz to 100MHz.
  
  Thank you.
- July 28, 2021 at 2:47 pm
  
  Praneeth
  Ansys Employee
  
  Please share more details regarding your model setup to help us serve you better.
  I would like to know the reasons behind the selection of HFSS for solving your model at the said simulation frequency.
  All the very best.
- July 31, 2021 at 6:57 am
  
  tsjitom
  Subscriber
  
  Thank you very much for your reply!
  As an experiment, I made a parallel plate capacitor device as shown in the attached image.
  The analysis space is a rectangle of air surrounding the device.
  I did not set any boundary conditions for the analysis space.
  
  Since HFSS is the only analysis software available in my lab, I chose this one.
  
  Do you need any other information?

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